75285085 has 4 divisors (see below), whose sum is σ = 90342108. Its totient is φ = 60228064.

The previous prime is 75285079. The next prime is 75285109. The reversal of 75285085 is 58058257.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58058257 = 31 ⋅1872847.

It can be written as a sum of positive squares in 2 ways, for example, as 48525156 + 26759929 = 6966^2 + 5173^2 .

It is a cyclic number.

It is not a de Polignac number, because 75285085 - 2⁵ = 75285053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7528504 + ... + 7528513.

It is an arithmetic number, because the mean of its divisors is an integer number (22585527).

Almost surely, 2^75285085 is an apocalyptic number.

It is an amenable number.

75285085 is a deficient number, since it is larger than the sum of its proper divisors (15057023).

75285085 is a wasteful number, since it uses less digits than its factorization.

75285085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15057022.

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 75285085 is about 8676.6978165659. The cubic root of 75285085 is about 422.2499903893.

The spelling of 75285085 in words is "seventy-five million, two hundred eighty-five thousand, eighty-five".